Unitary Mini Chiller OWNER’S & INSTALLATION MANUAL T Thank you very much for purchasing our air conditioner, please read this installation&owner's manual carefully before using your air conditioner.
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Unitary Mini Chiller
OWNER’S & INSTALLATION MANUAL
T
Thank you very much for purchasing our air conditioner,
please read this installation&owner's manual carefully before using your air conditioner.
OWNER’S & INSTALLATION MANUAL
Thank you very much for purchasing our air conditioner,
please read this installation&owner's manual carefully before using your air conditioner.
The following symbols are used in this publication and inside the unit:
User
Installer
Assistance
Important
Prohibition
Danger voltage
Danger moving blades
Danger high temperatures
INDEX
1
70°C
A
I
U
General warnings 2
Fundamental safety rules 2
Description of standard unit 3
Dimensioned drawings 4
Installation 6
Hydraulic connections 6
Electrical connections 7
General technical data 16
Operating limits 22
Hydraulic data 23
Refrigerant circuit 24
Checking and starting up the unit 25
Activating and deactivating the unit 26
Setting service parameters 27
Displaying alarms 39
Operating characteristics 40
Shutting down for long periods 40
Routine maintenance 41
Extraordinary maintenance 41
Troubleshooting 42
U I A
U I A
I A
I
I
I A
I A
I A
Cooling performance 17 A
Heatling performance 20 A
I A
I A
I A
A
U I A
A
I A
I A
A
A
A
I A
GENERAL WARNINGS
2
These units have been designed to chill and/or
heat water and must be used in applications compati-
ble with their performance characteristics; these
appliances are designed for residential or similar appli-
cations.
Incorrect installation, regulation and maintenance or
improper use absolve the manufacturer from all lia-
bility, whether contractual or otherwise, for damage
to people, animals or things. Only those applications
specifically indicated in this list are permitted.
Read this manual carefully. All work must be
carried out by qualified personnel in conformity
with legislation in force in the country concerned.
The guarantee is invalidated if the above
instructions are not respected and if the unit is
started up for the first time without the presence of
personnel authorised by the Company (where speci-
fied in the supply contract) who should draw up a
“start-up” report.
The documentation supplied with the unit must
be consigned to the owner who should keep it careful-
ly for future consultation in the event of maintenance
or service.
All repair or maintenance work must be carried out
by the Company’s Technical Service or qualified per-
sonnel following the instructions in this manual.The
air-conditioner must under no circumstances be
modified or tampered with as this may create situa-
tions of risk. Failure to observe this condition
absolves the manufacturer of all liability for resulting
damage.
When operating equipment involving the use of electricity
and water, a number of fundamental safety rules must be
observed, namely:
This appliance is not intended for use by persons
(including children) with reduced physical,sensory
or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision
or instruction concerning use of the appliance by a
person responsible for their safety.
Do not touch the unit with bare feet or with
wet or damp parts of the body
Do not carry out cleaning operations without
first disconnecting the system from the electricity
supply.
Do not modify safety or regulation devices with-
out authorisation and instructions from the manu-
facturer.
Do not pull, detach or twist the electrical cables
coming from the unit, even when disconnected from
the mains electricity supply.
Do not open doors or panels providing access
to the internal parts of the unit without first ensur-
ing that the mains switch is in the off position.
Do not introduce pointed objects through the
air intake and outlet grills.
Do not dispose of, abandon or leave within reach of
children packaging materials (cardboard, staples, plas-
tic bags, etc.) as they may represent a hazard.
The chiller appliances are supplied without
the main switch. The power supply to the unit
must be disconnected using a suitable main switch
that must be supplied and installed by the installer.
Respect safety distances between the unit and
other equipment or structures. Guarantee adequate
space for access to the unit for maintenance and/or
service operations;
Power supply: the cross section of the electrical
cables must be adequate for the power of the unit
and the power supply voltage must correspond with
the value indicated on the respective units. All units
must be earthed in conformity with legislation in
force in the country concerned.
Hydraulic connections should be carried out as
indicated in the instructions to guarantee correct
operation of the unit. Empty the water circuit or add
glycol if the unit is not used during the winter.
Handle the unit with the utmost care to avoid
damage.
FUNDAMENTAL SAFETY RULES
U A I
U A I
1 Condenser 2 Expansion tank 3 Accumulater 4 Axial-flow fan 5 High pressure switch 6 Compressor 7 Electrical panel 8 Control panel 9 Plate heat exchanger
10 Reversing valve ( only cooling only) 11 Water differential pressure switch 12 Pump connecting pipe(model 12/14/16KW
only)
13 Low pressure switch 14 Capillary 15 Pump
3
DESCRIPTION OF STANDARD UNIT
These air cooled reverse-cycle chillers with axial-flow fans
operate with refrigerant fluid and are suitable for outdoor
installation.The units conform to the essential requisites of
EEC directive 98/37.
They are factory tested and on site installation is limited to
water and electrical connections.
STRUCTURE
Panels and base are made from galvanised steel plate paint-
ed with epoxy powder to ensure total resistance to
atmospheric agents. Condensate collection pan as stan-
dard.
COMPRESSORS
Hermetic rotary or scroll compressor with crankcase heater
and thermal cut-out .
EVAPORATOR
AISI 316 stainless steel plate type evaporator complete
with electric heater and differential pressure switch.
Casing lined with anti-condensate closed cell neoprene
cladding.
PUMPS
The units feature a pump with the moving parts in contact
with the water made from corrosion resistant materials,
extra wear ring on the impeller, built-in capacitor for high
starting torque and automatic venting of impeller chamber.
PUMP ASSEMBLY
Pump assembly with expansion tank, safety valve, auto-
water replenishing assembly, pressure gauge and pump.
CONDENSING COILS
Made from copper tubes and high surface area aluminium
fins. Condensing coil protection grills as standard.
FANS
Axial-flow fans. Six-pole electric mot or with built-in thermal
cut-out. Housed in aerodynamic tubes with accident preven-
tion grill. Device for operation with low outside air tem-
peratures: continuous fan rotation speed control via con-
densing temperatures transducer.
POWER AND CONTROL ELECTRICAL PANEL
Power and control electrical panel constructed in accor-
dance with IEC 204-1/EN60335-2-40, complete with com-
pressor contactor. Control via “A2” control panel.
OPTIONAL ACCESSORIES
- Removable metal mesh filter.
- Remote keyboard kit.
The above accessories are optional. Consult the relative
documentation for assembly instructions and technical
data.
A I
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
16 Emergency Stop Pushbuttons
- Additional pump.
EMERGENCY STOP PUSHBUTTONS
In case system crisis is occur (e.g: Compressor out of control ),
press the emergency stop pushbuttons at once, and turn it clockwise,
until crisis is removed
DIMENSIONED DRAWINGS
4
600
0 0
9
B
C
A
D E
400
0 0 4
1- Hydraulic connections IN : R1 (5~7) R5/4 (9~16)
2- Hydraulic connections OUT : R1 (5~7) R5/4 (9~16)
A 990 990 940 940 1070 1070 1070
B 966 966 1245 1245 1249 1249 1249
C 354 354 360 360 420 420 420
624 624 600 600 698 698 698
366 366 376 376 430 430 430
D
E
Dimension 5 7 9 10 12 14 16
I
INSTALLATION
5
HYDRAULIC CONNECTIONS
CHOICE OF INSTALLATION SITE
Before installing the unit, agree with the customer the site
where it will be installed, taking the following points into
consideration:
- check that the fixing points are adequate to support the
weight of the unit;
- pay scrupulous respect to safety distances between the unit
and other equipment or structures to ensure that air
entering the unit and discharged by the fans is free to circu-
late.
POSITIONING
Before handling the unit, check the capacity of the lifting
equipment used, respecting the instructions on the packaging.
To move the unit in the horizontal, make appropriate use of a
lift truck or similar, bearing in mind the weight distribution of
the unit. To lift the unit, insert tubes long enough to allow
positioning of the lifting slings and safety pins in the feet on
the unit.
To avoid the slings damaging the unit, place protection
between the slings and the unit. Position the unit in the site
indicated by the customer. Place either a layer of rubber
(min. thickness 10 mm) or vibration damper feet (optional)
between the base and support surface. Fix the unit, making
sure it is level and that there is easy access to hydraulic and
electrical components. If the site of installation is exposed
to strong winds, fix the unit adequately to the support sur-
face using tie rods if necessary. If a heat pump unit is being
installed, make sure the condensate is drained using the
drain hose supplied as standard. Prevent leaves, branches or
snow from accumulating around the unit. These could
reduce the efficiency of the unit.
The choice and installation of components is the responsi-
bility of the installer who should follow good working
practice and current legislation. Before connecting the
pipes, make sure they do not contain stones, sand, rust,
dross or other foreign bodies which might damage the
unit. Construction of a bypass is recommended to enable
the pipes to be washed through without having to discon-
nect the unit (see drain valves). The connection piping
should be supported in such a way as to avoid it weighing
on the unit. It is recommended that the following devices
are installed in the water circuit of the evaporator.
1. Tw o pressure gauges with a suitable scale (inlet and
outlet). 2. Two vibration damper joints (inlet and outlet).
3. Two gate valves (normal in inlet and calibrating in outlet).
4. A flow switch (inlet) or a differential pressure switch
(inlet-outlet).
5. Two thermometers (inlet and outlet).
6. An inlet filter as close as possible to the evaporator and
7. An energy-saving water tank.
8. Additional pump.
positioned to allow easy access for routine maintenance.
9
2 4
1
15
16
11
15
7
17
18
2 3
10
5
6 T
6 T F
1 1
13
13
14
8
12
15
Installer connections
WATER INLET
WATER OUTLET
Factory connections 1 P r essure gauge
2 Vibration damper joint
3 Gate valve
4 Calibrating valve
5 Flow switch
6 Thermometer
7 Pump
8 Safety valve
9 Air vent
10 Expansion tank
11 Mesh filter
12 Auto-water replenishing
13 Temperature sensor
14 Differential pressure switch
15 Drain/chemical washing valve
16 Plate heat exchanger
17
18
Additional pump
Additional pump
I
A I
A hydraulic safety valve shall be mounted in water system,
which should open constantly. 9. The connecting line of flow switch, which mounted outside the
unit, should be connected in series with the pressure-difference
switch, which mounted inside the unit.
6
SIZE AND POSITION OF CONNECTIONS
Model 5 7 9 10 12 14 16
If the installation requires a useful head higher than that
obtained by installing a pump assembly and storage tank, it
is recommended that an additional pump is installed on the
unit. Provided the additional pump installed inside of unit(only
model 12/14/16KW can be installed inside of unit), the pump
must connected close to plate heat exchanger. Provided the
pump installed outside of unit, the pump shall be connected at
water pipe’s outlet.The pump can be easily installed on the unit by removing the pump connection pipe (see page 3). Connect
to terminal PL,PN on the electrical panel.
The chillers must be provided with a filling/top-up
system connected to the return line and a drain cock
in the lowest part of the installation. I nstallations
containing anti-freeze or covered by specific legisla-
tion must be fitted with hydraulic disconnectors.
The manufacturer is not liable for obstruction,
breakage or noise resulting from the failure to install
filters or vibration dampers. Particular types of water
used for filling or topping up must be treated with
appropriate treatment systems. For reference values,
see the table.
FILLING THE INSTALLATION
- Before filling, check that the installation drain cock is closed.
- Open all installation and terminal air vents.
- Open the gate valves.
- Begin filling, slowly opening the water filling cock outside the
unit
- W hen water begins to leak out of the terminal air vent
valves , close them and continue filling until the pressure
gauge indicates a pressure of 1.5 bars.
The installation must be filled to a pressure of
between 1 and 2 bars.
It is recommended that this operation be repeated
after the unit has been operating for a number of
hours. The pressure of the installation should be
checked regularly and if it drops below 1 bar, the
water content should be topped-up.
Check the hydraulic tightness of joints.
PH 6-8
Electrical conductivi ty less than 200 mV/cm (25°C)
Chlorine ions less than 50 ppm
Sulphuric acid ions less than 50 ppm
To tal iron less than 0.3 ppm
Alkalinity M less than 50 ppm
Total hardness less than 50 ppm
Sulphur ions none
Ammonia ions none
Silicon ions less than 30 ppm
EMPTYING THE INSTALLATION
- Before emptying, place the mains switch in the “off” position
- Make sure the installation fill/top-up water cock is closed
- O pen the drain cock outside the unit and all the installation
and terminal air vent valves.
If the fluid in the circuit contains anti-freeze, it
should not be allowed to drain freely as it is pollutant. It
should be collected for possible reuse. When draining
after heat pump operation, take care as the water may
be hot (up to 50°).
A (mm) 70 70 76 76 78 78 78 B (mm) 156 156 107 107 89 89 89 C (mm) 230 230 220 220 180 180 180 D (mm)
E (mm)
F (mm)
Water inlet/outlet (Ø)
Auto-water replenishing (Ø)
S ecurity discharge (Ø)
D
A
E
B F
C
water outlet
auto-water replenishing orifice
security discharge
water inlet
362 362 310 310 305 305 305
122 122 145 145 148 148 148
205 205 107 107 152 152 152
R1 R1 R5/4 R5/4 R5/4 R5/4 R5/4
G1/2 G1/2 G1/2 G1/2 G1/2 G1/2 G1/2
G1/2 G1/2 G1/2 G1/2 G1/2 G1/2 G1/2
an all-pole disconnection device which has at least 3mm separation distance in all pole and a residual current device(RCD)with the rating of above 10mA shall be incorporated in the fixed wiring according to the national rule the appliance shall be installed in accordance with national wiring regulations
ELECTRICAL CONNECTIONS
7
The unitary mini chillers leave the factory already
wired, and require the installation of an omnipolar thermal
overload switch, a lockable mains disconnecting switch for
the connection to the mains power supply, and the connec-
tion of the flow switch to the corresponding terminals. All
the above operations must be carried out by qualified per-
sonnel in compliance with the legislation in force.
For all electrical work, refer to the electrical wiring dia-
grams in this manual.You are also recommended to check:
- that the characteristics of the mains electricity supply are
adequate for the absorptions indicated in the electrical
characteristics table below, also bearing in mind the pos-
sible use of other equipment at the same time.
Power to the unit must be turned on only after
installation work (hydraulic and electrical) has been
completed.
All electrical connections must be carried out
by qualified personnel in accordance with legislation
in force in the country concerned.
Respect instructions for connecting phase,
neutral and earth conductors. The power line
should be fitted upstream with a suitable device to
protect against short-circuits and leakage to earth,
isolating the installation from other equipment.
Voltage must be within a tolerance of ±10% of the
rated power supply voltage for the unit (for three
phase units, the unbalance between the phases must
not exceed 3%).If these parameters are not
respected, contact the electricity supply company
For electrical connections, use double insulation
cable in conformity with current legislation in the
country concerned
An omnipolar thermal overload switch and a lock-
able mains disconnecting switch, in compliance with
the CEI-EN standards (contact opening of at least
3mm), with adequate switching and residual current
protection capacity based on the electrical data
table shown below, must be installed as near as pos-
sible to the appliance
The devices on the unit must be lockable.
An efficient earth connection is obligatory. Failure
to earth the appliance absolves the manufacturer
of all liability for damage.
In the case of three phase units, ensure the
phases are connected correctly.
Do not use water pipes to earth the unit.
A I
power supply F .L.I. F.L.A. L.R.A. F.L.I. F.L.A. F.L.I. F.L.A. F.L.I. F.L.A. F.L.I. F.L.A. FUSE1 (V-Ph-Hz) (kW) (A) (A) (kW) (A) (kW) (A) (kW) (A) (kW) (A)
Rated values (1) FUSES
Mod.
7
9
Electrical Compressors Fan/fans Pump Total Max. values (2) Glass 5x20mm 250V
5 220-240~50 1.80 8.75 36.8 0.23 1.1 0.10 0.40 2.13 9.6 2.5 11.3 5A
220-240~50 2.57 12.1 50.8 0.23 1.10 0.10 0.40 2.90 13.6 3.5 16.00 5A
220-240~50 3.01 14.1 96 0.32 1.50 0.21 1.0 3.54 16.9 4.95 23.1 5A
10 220-240~50 3.40 15.80 136 0.32 1.50 0.21 1.0 3.93 18.3 5.0 23.7 5A
10 380-415 3N~50 3.40 5.30 50 0.32 1.50 0.21 1.0 3.93 6.10 5.0 8.60 5A
4.17 6.30 67 0.32 1.50 0.21 1.0 4.70 8.80 5.5 9.9 5A
4.62 5.70 67 0.32 1.50 0.21 1.0 5.15 8.20 6.55 10.50 5A
6.02 10.68 67 0.32 1.50 0.21 1.0 6.55 11.5 8.0 13.5 5A
F.L.I. power input
F.L.A. current input
L.R.A. compressor start-up current
(1) Outside air temperature 35°C - Water temperature at evaporator 12/7°C.
(2) Values refer to the lower rated voltage (50 Hz).These values should be used to dimension protection switches and power cable
ELECTRICAL DATA
380-415 3N~50 12
14
16
380-415 3N~50 380-415 3N~50
8
ELECTRICAL PANEL
The electrical panel is located inside the unit at the top of
the technical compartment where the various components
of the refrigerant circuit are also to be found.
To access the electrical panel, remove the front panel of
the unit by undoing the screws.
ELECTRICAL PANEL LAYOUT
C1-2
KM
RY CAP1-2 A1 TC1 SA1
A2
SA1 Emergency switch A2 Electronic controller RY Compressor start relay A1 Power cont rol board
C1-2 Comp ressor capacitor CAP1-2 Fan ca pacitor KM Compress contactor T1 Sa fety transformer
A3
A3 FILTER
9
ELECTRICAL POWER CONNECTIONS
For the functional connection of the unit, bring the power
supply cable to the electrical panel inside the unit and con-
nect it to terminals L-N and respecting the (L) phase,
(N) neutral and earth in the case of single phase units
(220-240V~50Hz), or L1-L2-L3 phases, N neutral and PE
earth in three phase units (380-415V 3N~ 50Hz)
A UXILIARY CONNECTIONS
All terminals referred to in the explanations below are to
be found on the terminal board inside the electrical panel
and described as “installer terminals”.
REMOTE START UP AND STANDBY
To fit a remote on/standby device, the jumper must be replaced
with a switch connected to terminals 4 and 5 on the
installer terminal board. For timed operation, connect a
daily or weekly timer between terminals 4 and 5.
REMOTE KEYBOARD KIT
The remote keyboard kit can be used to display all unit
functions and access the parameters of the electronic
board from a point located at some distance from the unit
itself.
It consists of a remote control module.
To install the kit, proceed as follows:
- disconnect the power supply and then access the inside
of the electrical panel;
- connect the remote control module with 3 wires to terminals
15,16 and 17 on the installer terminal board:
connect terminal 15 to terminal Black/gnd on the module;
connect terminal 16 to terminal Blue/signal on the module;
connect terminal 17 to terminal Red/+12v on the module;
To avoid interference due to magnetic fields, the
use of shielded cable is recommended. The cable
should not be more than 100m long.
( A )
( mm 2 )
TYPE
POWER
GROUND WIRING
CIRCUIT BREAKER/FUSE
POWER WIRING
PHASE 1-PHASE 1-PHASE
FREQUENCY AND VOLT
25/20 40/25 40/35
4.0 4.0
5 7 9 10
220-240V~, 50Hz 220-240V~, 50Hz 220-240V~, 50Hz 220-240V~, 50Hz
1-PHASE
3x2.5
2.5
3x4.0 3x4.0
30/25
1-PHASE
3x2.5
2.5
The Specification of Power
( mm 2 )
( A )
( mm 2 )
TYPE
POWER
GROUND WIRING
CIRCUIT BREAKER/FUSE
POWER WIRING
PHASE 3-PHASE 3-PHASE
FREQUENCY AND VOLT
25/15 25/15 30/20
2.5 4.0
10 12 14 16
380-415V 3N~, 50Hz 380-415V 3N~, 50Hz 380-415V 3N~, 50Hz 380-415V 3N~, 50Hz
3-PHASE
5x2.5
2.5
5x2.5 5x4.0
25/15
3-PHASE
5x2.5
2.5 ( mm 2 )
The power cord type designation is H07RN-F.
Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed flexible cord, type designatio n
H07RN-F or heavier cord.
The means for disconnection from a power supply shall be incorporated in the fixed wiring and have an air gap contact separatio n
of at least 3mm in each active(phase) conductors.
Dealer provides power cord.
OUTDOOR/INDOOR CONNETING WIRING(mm ) 1.0 1.0 1.0 1.0
OUTDOOR/INDOOR CONNETING WIRING(mm ) 1.0 1.0 1.0 1.0
10
SINGLE-PHASEWIRING DIAGRAM( HEAT PUMP,5~8)
12
39
18
NP
LP
KN
AL
B
DE
R
87
65
4
~ ~
CN18
S
BLUE
BROWN
KC
ALB
2
F
3
F
1 0 T 2 0 T
3 0 T
1
F 4
F
2
A
S
13
4
LT
T
50
11
1
1o
AcdV21
BLACK
Red/+12v
Blue/signal
Black/gnd
5 0 T
BLUE
BLUE
BROWN
BROWN
NW
ORB
NW
OR
B
1IA
2IA
3IA
4IA
N
P
L
P
~ ~
CN18
5 0 T
S
Y
R
2
F
3
F
1 0 T 2 0 T
3 0 T
1
F 4
F
2
A
S
N
W
O
R
B
N
W
O
R
B
Red/+12v
Blue/signal
Black/gnd 1
I
A
2
I A
3
I
A
4
I A
1
2
3
1
3
4
L
T
T
9
9
1
7
8
8
7
6
5
V
E
R
L
L
L
5
0
1
1
1 1 o
A
c d V 2 1
SINGLE-PHASEWIRING DIAGRAM( HEAT PUMP,9~10)
11
12
THREE PHASE WIRING DIAGRAM ( HEAT PUMP, 10~16)
1IA
2IA
3IA
4IA
12
31
34
LT
T
99
17
8
2
F
3
F
87
65
1
F 4
F
Red/+12v
GREY
BLACK
1E
SU
F
VE
RL
L
5 0 T
1E
SU
F
Blue/signal
Black/gnd
L
50
11
1
1o
Acd V21
BLUE
BLUE
BROWN
BROWN
NW
ORB
NW
OR
B NW
OR
B
NW
OR
B
DN
UO
R-1H
C
DN
UO
R -2
HC
G
N
I R
C
I
T
E
N
G
A
M
H
C
13
SINGLE-PHASEWIRING DIAGRAM (COOLING ONLY, 5~8)
12
39
18
NP
LP
KN
AL
B
DE
R
87
65
4
~ ~
CN18
S
BLUE
BROWN
KC
A LB
2
F
3
F
1 0 T 2 0 T
3 0 T
1
F 4
F
2
A
S
13
4
LT
T
50
11
1
1o
AcdV21
BLACK
Red/+12v
Blue/signal
Black/gnd
5 0 T
BLUE
BLUE
BROWN
BROWN
NW
ORB
NW
OR
B
1 IA
2IA
3IA
4IA
N
P
L
P
~ ~
CN18
5 0 T
S
Y
R
2
F
3
F
1 0 T 2 0 T
3 0 T
1
F 4
F
2
A
S
N
W
O
R
B
N
W
O
R
B
Red/+12v
Blue/signal
Black/gnd 1
I
A
2
I A
3
I
A
4
I A
1
2
3
1
3
4
L
T
T
9
9
1
7
8
8
7
6
5
V
E
R
L
L
L
5
0
1
1
1 1 o
A
c d V 2 1
SINGLE-PHASEWIRING DIAGRAM( COOLING ONLY,9~10)
14
15
THREE PHASE WIRING DIAGRAM (COOLING ONLY, 10~16)
1IA
2IA
3IA
4IA
12
31
34
LT
T
99
17
8
2
F
3
F
87
65
1
F 4
F
Red/+12v
GREY
BLACK
1E
SU
F
VE
RL
L
5 0 T
1E
SU
F
Blue/signal
Black/gndL
50
11
1
1o
Acd V21
BLUE
BLUE
BROWN
BROWN
NW
ORB
NW
OR
B NW
OR
B
NW
OR
B
DN
UO
R-1H
C
DN
UO
R -2
HC
G
N
I R
C
I
T
E
N
G
A
M
H
C
Model HEAT PUMP Type 5 7 9 10 10 12 14 16
Minimum water flow m 3 /h 0.4 0.5 0.7 0.86 0.86 1.0 1.2 1.4
/h 0.86 1.24 1.54 1.74 1.72 2.0 2.4 2.8
21 35 42 44 44 40 34 38
Rated water flow m 3
Residual head kPa
(1) condenser air in 35°C.evaporator water in/out 12/7°C
(2) Power also includes the pump power inside of it. (4) the maximum and minimum operating pressure values re fer to the activation of the pressure switches
* the two types of oil are equivalents
GENERAL TECHNICAL DATA I A
16
Model COOLING ONLY
Minimum water flow m 3 /h 0.4 0.5 0.7 0.86 0.86 1.0 1.2 1.4
/h 0.86 1.24 1.54 1.74 1.72 2.0 2.4 2.8
21 35 42 44 44 40 34 38
Rated water flow m 3
Residual head kPa
(3) at 1m in open field fan side (sound pressure)
Max. water pressure bar 6.0
Max. water-in pressure bar 5.0
Max. water pressure bar 6.0
Max. water-in pressure bar 5.0
Min. water-in pressure bar 1.5
Min. water-in pressure bar 1.5
Type 5 7 9 10 10 12 14 16
17
COOLING PERFORMANCE (COOLING ONLY)
Model 9
Ta . Tw 5 6 7 8 9 10 Ta . Tw 5 6 7 8 9 10
Model 5
Ta: outside air temperature (°C) Pa: compressor power input (kW) ∆Pev: evaporator pressure drop (kPa)
Tw : evaporator water outlet temperature (°C) Pat: total power input (kW)
Pf: cooling capacity (kW) Qev: evaporator water flow (m /h) 3
Ta . Tw 5 6 7 8 9 10
Model 7
Pf 4.9 5.0 5.2 5.3 5.4 5.6 Pa 1.3 1.3 1.3 1.3 1.4 1.4
25 Pat 1.4 1.4 1.4 1.4 1.4 1.4 Qev 0.8 0.9 0.9 0.9 0.9 1.0 ∆ Pev 24.6 26.0 27.6 29.2 30.8 32.5 Pf 4.6 4.8 4.9 5.1 5.2 5.3 Pa 1.5 1.5 1.5 1.5 1.5 1.5
30 Pat 1.5 1.6 1.6 1.6 1.6 1.6 Qev 0.8 0.8 0.8 0.9 0.9 0.9 ∆ Pev 22.4 23.7 25.1 26.6 28.1 29.6 Pf 4.8 4.9 5.0 5.1 5.2 5.3 Pa 1.8 1.8 1.8 1.9 1.9 1.9
35 Pat 2.1 2.1 2.1 2.2 2.2 2.2 Qev 0.8 0.8 0.8 0.9 0.9 0.9 ∆ Pev 18.5 19.8 21.0 22.5 24.0 25.5 Pf 4.4 4.5 4.7 4.8 4.9 5.1 Pa 1.6 1.6 1.6 1.7 1.7 1.7
40 Pat 1.7 1.7 1.8 1.8 1.8 1.8 Qev 0.8 0.8 0.8 0.8 0.9 0.9 ∆ Pev 20.1 21.3 22.6 23.9 25.3 26.7 Pf 4.1 4.3 4.4 4.5 4.7 4.8 Pa 1.8 1.8 1.9 1.9 1.9 1.9
43 Pat 1.9 1.9 1.9 2.0 2.0 2.0 Qev 0.7 0.7 0.8 0.8 0.8 0.8 ∆ Pev 17.8 18.9 20.1 21.3 22.5 23.8
Pf 6.3 6.5 6.7 6.9 7.0 7.2 Pa 1.6 1.6 1.6 1.6 1.6 1.6
25 Pat 1.7 1.8 1.8 1.8 1.8 1.8 Qev 1.1 1.1 1.1 1.2 1.2 1.2 ∆ Pev 35.2 37.4 39.5 41.8 44.2 46.6 Pf 6.0 6.2 6.4 6.6 6.7 6.9 Pa 1.8 1.8 1.8 1.8 1.8 1.8
30 Pat 1.9 1.9 2.0 2.0 2.0 2.0 Qev 1.0 1.1 1.1 1.1 1.2 1.2 ∆ Pev 32.3 34.2 36.3 38.4 40.5 42.8 Pf 5.9 6.1 7.2 6.4 6.6 6.8 Pa 1.9 1.9 2.6 1.9 1.9 1.9
35 Pat 2.0 2.0 2.9 2.0 2.1 2.1 Qev 1.0 1.0 1.2 1.1 1.1 1.2 ∆ Pev 3.1 33.0 35.0 37.0 39.1 41.3
Pf 5.7 5.9 6.1 6.3 6.4 6.6 Pa 2.0 2.0 2.0 2.0 2.0 2.0
40 Pat 2.1 2.1 2.2 2.2 2.2 2.2 Qev 1.0 1.0 1.0 1.1 1.1 1.1 ∆ Pev 29.3 31.1 33.0 34.9 36.9 39.0 Pf 5.4 5.6 5.8 6.0 6.1 6.3 Pa 2.2 2.2 2.2 2.2 2.3 2.3
43 Pat 2.4 2.4 2.4 2.4 2.4 2.4 Qev 0.9 1.0 1.0 1.0 1.1 1.1 ∆ Pev 26.4 28.0 29.8 31.5 33.4 35.3
Pf 8.3 8.6 8.9 9.2 9.5 9.8 Pa 2.6 2.6 2.6 2.7 2.7 2.7
25 Pat 2.9 2.9 2.9 3.0 3.0 3.0 Qev 1.4 1.5 1.5 1.6 1.6 1.7 ∆ Pev 36 41 43 46.4 48 51 Pf 7.9 8.2 8.5 8.8 9.1 9.4 Pa 2.8 2.8 2.8 2.9 2.9 2.9
30 Pat 3.1 3.1 3.1 3.2 3.2 3.2 Qev 1.3 1.4 1.4 1.5 1.5 1.6 ∆ Pev 29.5 32.1 35.6 39.0 41.8 47.0 Pf 7.5 7.8 8.0 8.2 8.5 8.8 Pa 3.1 3.1 3.2 3.3 3.3 3.3
35 Pat 3.4 3.4 3.5 3.6 3.6 3.6 Qev 1.3 1.3 1.4 1.4 1.5 1.5 ∆ Pev 28.0 30.4 33.9 35.0 38. 0 42.0 Pf 7.0 7.3 7.5 7.7 8.0 8.3 Pa 3.4 3.4 3.5 3.6 3.6 3.6
40 Pat 3.7 3.7 3.8 3.9 3.9 3.9 Qev 1.2 1.3 1.3 1.4 1.4 1.4 ∆ Pev 24.0 26.0 26.8 28.0 32.1 35.3 Pf 6.8 7.1 7.3 7.5 7.8 8.1 Pa 3.6 3.6 3.7 3.8 3.8 3.8
43 Pat 3.9 3.9 4.0 4.1 4.1 4.1 Qev 1.1 1.2 1.2 1.3 1.3 1.4 ∆ Pev 20.0 23.5 24.6 28.0 31.0 34.0
Model 14
Ta . Tw 5 6 7 8 9 10 Ta . Tw 5 6 7 8 9 10
Model 10
Ta . Tw 5 6 7 8 9 10
Model 12
Pf 10.9 11.2 11.5 11.8 12.1 12.4 Pa 2.6 2.6 2.7 2.7 2.7 2.8
25 Pat 3.1 3.1 3.2 3.2 3.2 3.3 Qev 1.9 1.9 2.0 2.0 2.1 2.2 ∆ Pev 31.5 31.7 33.0 33.5 36.0 38.0 Pf 10.4 10.8 11.1 11.5 11.8 12.1 Pa 2.9 2.9 3.0 3.1 3.1 3.1
30 Pat 3.4 3.4 3.5 3.6 3.6 3.6 Qev 1.8 1.8 1.9 2.0 2.0 2.0 ∆ Pev 29.8 30.4 31.8 33.2 33.6 33.9 Pf 9.9 10.2 10.5 10.7 11.0 11.3 Pa 3.3 3.3 3.4 3.4 3.5 3.5
35 Pat 3.8 3.8 3.9 3.9 4.0 4.0 Qev 1.7 1.7 1.8 1.9 1.9 2.0 ∆ Pev 27.0 27.5 30.0 32.0 32.4 34.0 Pf 9.4 9.7 10.0 10.3 10.6 11.0 Pa 3.6 3.6 3.7 3.7 3.8 3.8
40 Pat 4.1 4.1 4.2 4.2 4.3 4.3 Qev 1.6 1.6 1.7 1.7 1.8 1.8 ∆ Pev 24.0 24.4 27.2 27.6 30.3 30.5 Pf 9.0 9.3 9.5 9.8 10.0 10.3 Pa 3.8 3.8 3.9 3.9 4.0 4.0
43 Pat 4.3 4.3 4.4 4.4 4.5 4.5 Qev 1.5 1.6 1.6 1.7 1.7 1.8 ∆ Pev 21.0 23.8 24.4 27.0 27.5 31.0
Pf 12.4 12.7 13.0 13.3 13.6 13.9 Pa 3.5 3.5 3.5 3.6 3.6 3.6
25 Pat 4.1 4.1 4.1 4.2 4.2 4.2 Qev 2.2 2.2 2.3 2.3 2.3 2.4 ∆ Pev 29.1 29.9 31.0 32.4 34.1 37.5 Pf 11.9 12.2 12.5 12.8 13.1 13.4 Pa 3.8 3.8 3.8 3.9 3.9 3.9
30 Pat 4.4 4.4 4.4 4.5 4.5 4.5 Qev 2.0 2.1 2.1 2.2 2.2 2.3 ∆ Pev 23.1 23.2 25.4 27.0 28.8 30.0 Pf 11.4 11.7 12.0 12.3 12.6 12.9 Pa 4.2 4.2 4.2 4.3 4.3 4.3
35 Pat 4.8 4.8 4.8 4.9 4.9 4.9 Qev 2.0 2.0 2.1 2.1 2.2 2.2 ∆ Pev 21.1 23.2 25.4 27.0 28.8 30.0 Pf 10.9 11.2 11.5 11.8 12.1 12.4 Pa 4.5 4.5 4.5 4.6 4.6 4.6
40 Pat 5.1 5.1 5.1 5.2 5.2 5.2 Qev 1.9 2.0 2.0 2.0 2.1 2.1 ∆ Pev 20.2 21.9 22.7 24.0 25.6 28.2 Pf 10.5 10.8 11.1 11.4 11.7 12.0 Pa 4.7 4.7 4.7 4.8 4.8 4.8
43 Pat 5.3 5.3 5.3 5.4 5.4 5.4 Qev 1.8 1.9 1.9 2.0 2.0 2.0 ∆ Pev 17.5 18.8 21.1 23.4 24.1 25.3
Pf 14.8 15.1 15.4 15.7 16.1 16.4 Pa 3.6 3.6 3.6 3.7 3.7 3.7
25 Pat 4.1 4.1 4.1 4.2 4.2 4.2 Qev 2.6 2.6 2.7 2.7 2.8 2.8 ∆ Pev 29.0 29.4 30.4 31.2 33.0 34.0 Pf 14.1 14.4 14.7 15.0 15.3 15.6 Pa 4.1 4.1 4.1 4.2 4.2 4.2
30 Pat 4.6 4.6 4.7 4.7 4.7 4.7 Qev 2.4 2.5 2.5 2.6 2.6 2.7 ∆ Pev 25.8 28.2 28.4 28.9 29.5 31.0 Pf 13.4 13.7 14.0 14.3 14.6 14.9 Pa 4.6 4.6 4.6 4.7 4.7 4.7
35 Pat 5.1 5.1 5.1 5.2 5.2 5.2 Qev 2.3 2.4 2.4 2.5 2.5 2.5 ∆ Pev 24.0 25.6 26.0 27.6 28.1 28.4 Pf 12.5 12.8 13.1 13.4 13.7 14.0 Pa 5.1 5.1 5.1 5.2 5.2 5.2
40 Pat 5.6 5.6 5.6 5.7 5.7 5.7 Qev 2.2 2.2 2.3 2.3 2.4 2.4 ∆ Pev 19.6 20.3 21.6 23.4 25.7 26.4 Pf 12.0 12.3 12.6 12.9 13.2 13.5 Pa 5.5 5.5 5.5 5.6 5.6 5.6
43 Pat 6.0 6.0 6.0 6.1 6.1 6.1 Qev 2.1 2.1 2.2 2.2 2.3 2.3 ∆ Pev 18.0 19.1 20.7 21.3 23.0 23.8
A
18
Ta: outside air temperature (°C)
Pa: compressor power input (kW)
∆Pev: evaporator pressure drop (kPa)
Tw : evaporator water outlet temperature (°C)
Pat: total power input (kW)
Pf: cooling capacity (kW)
Qev: evaporator water flow (m 3 /h)
Ta . Tw 5 6 7 8 9 10
Model 16
Pf 15.5 15.7 16.0 16.3 16.5 16.8 Pa 5.0 5.0 5.0 5.1 5.1 5.1
25 Pat 5.5 5.5 5.5 5.6 5.6 5.6 Qev 2.7 2.7 2.8 2.8 2.9 2.9 ∆ Pev 30.5 32.0 33.0 34.5 36.2 37.6 Pf 14.8 15.0 15.3 15.6 15.8 16.1 Pa 4.5 4.5 4.5 4.6 4.6 4.6
30 Pat 5.0 5.0 5.0 5.1 5.1 5.1 Qev 2.6 2.6 2.7 2.7 2.8 2.8 ∆ Pev 28.3 29.4 28.3 30.4 33.3 35.0 Pf 14.9 15.2 15.5 15.8 16.1 16.4 Pa 6.0 6.0 6.0 6.1 6.1 6.1
35 Pat 6.5 6.5 6.5 6.6 6.6 6.6 Qev 2.6 2.6 2.7 2.7 2.8 2.8 ∆ Pev 28.2 29.5 31.0 32.3 34.0 35.1
Pf 14.2 14.5 14.8 15.1 15.4 15.7 Pa 5.5 5.5 5.5 5.6 5.6 5.6
40 Pat 6.0 6.0 6.0 6.1 6.1 6.1 Qev 2.5 2.5 2.6 2.6 2.7 2.7 ∆ Pev 26.0 27.3 28.6 29.5 31.0 33.0 Pf 13.5 13.8 14.1 14.4 14.7 15.0 Pa 5.0 5.0 5.0 5.1 5.1 5.1
43 Pat 5.5 5.5 5.5 5.6 5.6 5.6 Qev 2.4 2.4 2.5 2.5 2.6 2.6 ∆ Pev 23.0 24.6 26.1 27.3 28.6 30.0
COOLING PERFORMANCE (HEAT PUMP) A
Model 9
Ta . Tw 5 6 7 8 9 10 Ta . Tw 5 6 7 8 9 10
Model 5
Ta . Tw 5 6 7 8 9 10
Model 7
Pf 4.9 5.0 5.2 5.3 5.4 5.6 Pa 1.3 1.3 1.3 1.3 1.4 1.4
25 Pat 1.4 1.4 1.4 1.4 1.4 1.4 Qev 0.8 0.9 0.9 0.9 0.9 1.0 ∆ Pev 24.6 26.0 27.6 29.2 30.8 32.5 Pf 4.6 4.8 4.9 5.1 5.2 5.3 Pa 1.5 1.5 1.5 1.5 1.5 1.5
30 Pat 1.5 1.6 1.6 1.6 1.6 1.6 Qev 0.8 0.8 0.8 0.9 0.9 0.9 ∆ Pev 22.4 23.7 25.1 26.6 28.1 29.6 Pf 4.8 4.9 5.0 5.1 5.2 5.3 Pa 1.8 1.8 1.8 1.8 1.9 1.9
35 Pat 2.1 2.1 2.1 2.2 2.2 2.2 Qev 0.8 0.8 0.8 0.9 0.9 0.9 ∆ Pev 18.5 19.8 21.0 22.5 24.0 25.5 Pf 4.4 4.5 4.7 4.8 4.9 5.1 Pa 1.6 1.6 1.6 1.7 1.7 1.7
40 Pat 1.7 1.7 1.8 1.8 1.8 1.8 Qev 0.8 0.8 0.8 0.8 0.9 0.9 ∆ Pev 20.1 21.3 22.6 23.9 25.3 26.7 Pf 4.1 4.3 4.4 4.5 4.7 4.8 Pa 1.8 1.8 1.9 1.9 1.9 1.9
43 Pat 1.9 1.9 1.9 2.0 2.0 2.0 Qev 0.7 0.7 0.8 0.8 0.8 0.8 ∆ Pev 17.8 18.9 20.1 21.3 22.5 23.8
Pf 6.3 6.5 6.7 6.9 7.0 7.2 Pa 1.6 1.6 1.6 1.6 1.6 1.6
25 Pat 1.7 1.8 1.8 1.8 1.8 1.8 Qev 1.1 1.1 1.1 1.2 1.2 1.2 ∆ Pev 35.2 37.4 39.5 41.8 44.2 46.6 Pf 6.0 6.2 6.4 6.6 6.7 6.9 Pa 1.8 1.8 1.8 1.8 1.8 1.8
30 2.00 Pat 1.9 1.9 2.0 2.0 2.0 Qev 1.0 1.1 1.1 1.1 1.2 1.2 ∆ Pev 32.3 34.2 36.3 38.4 40.5 42.8 Pf 7.0 7.1 7.2 7.3 7.4 7.5 Pa 2.6 2.6 2.6 2.7 2.7 2.7
35 Pat 2.9 2.9 2.9 3.0 3.0 3.0 Qev 1.2 1.2 1.2 1.3 1.3 1.3
∆ Pev 32.5 33.8 35.0 36.5 38.0 39.5
Pf 5.7 5.9 6.1 6.3 6.4 6.6 Pa 2.0 2.0 2.0 2.0 2.0 2.0
40 Pat 2.1 2.1 2.2 2.2 2.2 2.2 Qev 1.0 1.0 1.0 1.1 1.1 1.1 ∆ Pev 29.3 31.1 33.0 34.9 36.9 39.0 Pf 5.4 5.6 5.8 6.0 6.1 6.3 Pa 2.2 2.2 2.2 2.2 2.3 2.3
43 Pat 2.4 2.4 2.4 2.4 2.4 2.4 Qev 0.9 1.0 1.0 1.0 1.1 1.1 ∆ Pev 26.4 28.0 29.8 31.5 33.4 35.3
Pf 8.3 8.6 8.9 9.2 9.5 9.8 Pa 2.6 2.6 2.6 2.7 2.7 2.7
25 Pat 2.9 2.9 2.9 3.0 3.0 3.0 Qev 1.4 1.5 1.5 1.6 1.6 1.7 ∆ Pev 36 41 43 46.4 48 51 Pf 7.9 8.2 8.5 8.8 9.1 9.4 Pa 2.8 2.8 2.8 2.9 2.9 2.9
30 Pat 3.1 3.1 3.1 3.2 3.2 3.2 Qev 1.3 1.4 1.4 1.5 1.5 1.6 ∆ Pev 29.5 32.1 35.6 39.0 41.8 47.0 Pf 7.5 7.8 8.0 8.2 8.5 8.8 Pa 3.1 3.1 3.2 3.3 3.3 3.3
35 Pat 3.4 3.4 3.5 3.6 3.6 3.6 Qev 1.3 1.3 1.4 1.4 1.5 1.5 ∆ Pev 28.0 30.4 33.9 35.0 38. 0 42.0 Pf 7.0 7.3 7.5 7.7 8.0 8.3 Pa 3.4 3.4 3.5 3.6 3.6 3.6
40 Pat 3.7 3.7 3.8 3.9 3.9 3.9 Qev 1.2 1.3 1.3 1.4 1.4 1.4 ∆ Pev 24.0 26.0 26.8 28.0 32.1 35.3 Pf 6.8 7.1 7.3 7.5 7.8 8.1 Pa 3.6 3.6 3.7 3.8 3.8 3.8
43 Pat 3.9 3.9 4.0 4.1 4.1 4.1 Qev 1.1 1.2 1.2 1.3 1.3 1.4 ∆ Pev 20.0 23.5 24.6 28.0 31.0 34.0
19
Ta: outside air temperature (°C) Pa: compressor power input (kW) ∆Pev: evaporator pressure drop (kPa)
Tw : evaporator water outlet temperature (°C) Pat: total power input (kW)
Pf: cooling capacity (kW) Qev: evaporator water flow (m /h) 3
Model 14
Ta . Tw 5 6 7 8 9 10 Ta . Tw 5 6 7 8 9 10
Model 10
Ta . Tw 5 6 7 8 9 10
Model 12
Pf 10.9 11.2 11.5 11.8 12.1 12.4 Pa 2.6 2.6 2.7 2.7 2.7 2.8
25 Pat 3.1 3.1 3.2 3.2 3.2 3.3 Qev 1.9 1.9 2.0 2.0 2.1 2.2 ∆ Pev 31.5 31.7 33.0 33.5 36.0 38.0 Pf 10.4 10.8 11.1 11.5 11.8 12.1 Pa 2.9 2.9 3.0 3.1 3.1 3.1
30 Pat 3.4 3.4 3.5 3.6 3.6 3.6 Qev 1.8 1.8 1.9 2.0 2.0 2.0 ∆ Pev 29.8 30.4 31.8 33.2 33.6 33.9 Pf 9.9 10.2 10.5 10.7 11.0 11.3 Pa 3.3 3.3 3.4 3.4 3.5 3.5
35 Pat 3.8 3.8 3.9 3.9 4.0 4.0 Qev 1.7 1.7 1.8 1.9 1.9 2.0 ∆ Pev 27.0 27.5 30.0 32.0 32.4 34.0 Pf 9.4 9.7 10.0 10.3 10.6 11.0 Pa 3.6 3.6 3.7 3.7 3.8 3.8
40 Pat 4.1 4.1 4.2 4.2 4.3 4.3 Qev 1.6 1.6 1.7 1.7 1.8 1.8 ∆ Pev 24.0 24.4 27.2 27.6 30.3 30.5 Pf 9.0 9.3 9.5 9.8 10.0 10.3 Pa 3.8 3.8 3.9 3.9 4.0 4.0
43 Pat 4.3 4.3 4.4 4.4 4.5 4.5 Qev 1.5 1.6 1.6 1.7 1.7 1.8 ∆ Pev 21.0 23.8 24.4 27.0 27.5 31.0
Pf 12.4 12.7 13.0 13.3 13.6 13.9 Pa 3.5 3.5 3.5 3.6 3.6 3.6
25 Pat 4.1 4.1 4.1 4.2 4.2 4.2 Qev 2.2 2.2 2.3 2.3 2.3 2.4 ∆ Pev 29.1 29.9 31.0 32.4 34.1 37.5 Pf 11.9 12.2 12.5 12.8 13.1 13.4 Pa 3.8 3.8 3.8 3.9 3.9 3.9
30 Pat 4.4 4.4 4.4 4.5 4.5 4.5 Qev 2.0 2.1 2.1 2.2 2.2 2.3 ∆ Pev 23.1 23.2 25.4 27.0 28.8 30.0 Pf 11.4 11.7 12.0 12.3 12.6 12.9 Pa 4.2 4.2 4.2 4.3 4.3 4.3
35 Pat 4.8 4.8 4.8 4.9 4.9 4.9 Qev 2.0 2.0 2.1 2.1 2.2 2.2 ∆ Pev 21.1 23.2 25.4 27.0 28.8 30.0 Pf 10.9 11.2 11.5 11.8 12.1 12.4 Pa 4.5 4.5 4.5 4.6 4.6 4.6
40 Pat 5.1 5.1 5.1 5.2 5.2 5.2 Qev 1.9 2.0 2.0 2.0 2.1 2.1 ∆ Pev 20.2 21.9 22.7 24.0 25.6 28.2 Pf 10.5 10.8 11.1 11.4 11.7 12.0 Pa 4.7 4.7 4.7 4.8 4.8 4.8
43 Pat 5.3 5.3 5.3 5.4 5.4 5.4 Qev 1.8 1.9 1.9 2.0 2.0 2.0 ∆ Pev 17.5 18.8 21.1 23.4 24.1 25.3
Pf 14.8 15.1 15.4 15.7 16.1 16.4 Pa 3.6 3.6 3.6 3.7 3.7 3.7
25 Pat 4.1 4.1 4.1 4.2 4.2 4.2 Qev 2.6 2.6 2.7 2.7 2.8 2.8 ∆ Pev 29.0 29.4 30.4 31.2 33.0 34.0 Pf 14.1 14.4 14.7 15.0 15.3 15.6 Pa 4.1 4.1 4.1 4.2 4.2 4.2
30 Pat 4.6 4.6 4.7 4.7 4.7 4.7 Qev 2.4 2.5 2.5 2.6 2.6 2.7 ∆ Pev 25.8 28.2 28.4 28.9 29.5 31.0 Pf 13.4 13.7 14.0 14.3 14.6 14.9 Pa 4.6 4.6 4.6 4.7 4.7 4.7
35 Pat 5.1 5.1 5.1 5.2 5.2 5.2 Qev 2.3 2.4 2.4 2.5 2.5 2.5 ∆ Pev 24.0 25.6 26.0 27.6 28.1 28.4 Pf 12.5 12.8 13.1 13.4 13.7 14.0 Pa 5.1 5.1 5.1 5.2 5.2 5.2
40 Pat 5.6 5.6 5.6 5.7 5.7 5.7 Qev 2.2 2.2 2.3 2.3 2.4 2.4 ∆ Pev 19.6 20.3 21.6 23.4 25.7 26.4 Pf 12.0 12.3 12.6 12.9 13.2 13.5 Pa 5.5 5.5 5.5 5.6 5.6 5.6
43 Pat 6.0 6.0 6.0 6.1 6.1 6.1 Qev 2.1 2.1 2.2 2.2 2.3 2.3 ∆ Pev 18.0 19.1 20.7 21.3 23.0 23.8
Ta: outside air temperature (°C)
Pa : compressor power input (kW)
∆Pev: evaporator pressure drop (kPa)
Tw : evaporator water outlet temperature (°C)
Pat: total power input (kW)
Pf: cooling capacity (kW)
Qev: evaporator water flow (m 3 /h)
Ta . Tw 5 6 7 8 9 10
Model 16
Pf 15.5 15.7 16.0 16.3 16.5 16.8 Pa 5.0 5.0 5.0 5.1 5.1 5.1
25 Pat 5.5 5.5 5.5 5.6 5.6 5.6 Qev 2.7 2.7 2.8 2.8 2.9 2.9 ∆ Pev 30.5 32.0 33.0 34.5 36.2 37.6 Pf 14.8 15.0 15.3 15.6 15.8 16.1 Pa 4.5 4.5 4.5 4.6 4.6 4.6
30 Pat 5.0 5.0 5.0 5.1 5.1 5.1 Qev 2.6 2.6 2.7 2.7 2.8 2.8 ∆ Pev 28.3 29.4 28.3 30.4 33.3 35.0 Pf 14.9 15.2 15.5 15.8 16.1 16.4 Pa 6.0 6.0 6.0 6.1 6.1 6.1
35 Pat 6.5 6.5 6.5 6.6 6.6 6.6 Qev 2.6 2.6 2.7 2.7 2.8 2.8 ∆ Pev 28.2 29.5 31.0 32.3 34.0 35.1
Pf 14.2 14.5 14.8 15.1 15.4 15.7 Pa 5.5 5.5 5.5 5.6 5.6 5.6
40 Pat 6.0 6.0 6.0 6.1 6.1 6.1 Qev 2.5 2.5 2.6 2.6 2.7 2.7 ∆ Pev 26.0 27.3 28.6 29.5 31.0 33.0 Pf 13.5 13.8 14.1 14.4 14.7 15.0 Pa 5.0 5.0 5.0 5.1 5.1 5.1
43 Pat 5.5 5.5 5.5 5.6 5.6 5.6 Qev 2.4 2.4 2.5 2.5 2.6 2.6 ∆ Pev 23.0 24.6 26.1 27.3 28.6 30.0
20
HEATING PERFORMANCE (HEAT PUMP)
Pt 8.3 8.3 8.3
Pa 3.0 3.2 3.5
-5 Pat 3.5 3.7 4.0
Qc 1.4 1.4 1.4
∆Pc 19.6 18.9 18.0
Pt 9.4 9.4 9.4 9.2
Pa 3.1 3.3 3.6 3.8
0 Pat 3.6 3.8 4.1 4.3
Qc 1.7 1.6 1.6 1.6
∆Pc 27.5 25.6 24.8 23.2
Pt 11.4 11.3 11.2 11.1
Pa 3.3 3.6 3.8 4.1
7 Pat 3.8 4.1 4.3 4.6
Qc 2.0 2.0 2.0 1.9
∆Pc 37.2 35.8 34.5 33.1
Pt 12.3 12.2 12.1 12.0
Pa 3.4 3.7 3.9 4.2
10 Pat 3.9 4.2 4.4 4.7
Qc 2.1 2.1 2.1 2.1
∆Pc 40.5 40.0 39.2 38.8
Pt 13.8 13.7 13.6 13.5
Pa 3.5 3.8 4.0 4.3
15 Pat 4.0 4.3 4.5 4.8
Qc 2.4 2.4 2.3 2.3
∆Pc 45.8 45.1 43.6 42.9
Pt 9.9 9.8 9.8 -
Pa 3.7 4.0 4.3 -
-5 Pat 4.3 4.6 4.9 -
Qc 1.7 1.7 1.7 -
∆Pc 26.0 25.6 25.2 -
Pt 11.1 11.0 11.0 11.0
Pa 3.8 4.1 4.4 4.6
0 Pat 4.4 4.7 5.0 5.2
Qc 1.9 1.9 1.9 1.9
∆Pc 33.0 32.6 32.1 31.8
Pt 13.4 13.3 13.2 13.1
Pa 3.9 4.2 4.5 4.8
7 Pat 4.5 4.8 5.1 5.4
Qc 2.3 2.3 2.3 2.3
∆Pc 44.0 43.6 43.1 42.8
Pt 14.4 14.3 14.2 14.1
Pa 4.0 4.3 4.6 4.9
10 Pat 4.6 4.9 5.2 5.5
Qc 2.5 2.5 2.5 2.5
∆Pc 38.0 37.6 37.2 37.0
Pt 15.9 15.8 15.7 15.6
Pa 4.1 4.4 4.7 5.0
15 Pat 4.7 5.0 5.3 5.6
Qc 2.8 2.8 2.8 2.8
∆Pc 45.0 44.8 44.6 44.2
Pt 10.4 10.5 10.6 -
Pa 4.0 4.4 4.9 -
-5 Pat 4.5 4.9 5.4 -
Qc 1.9 1.9 1.9 -
∆Pc 15.2 15.1 15.0 -
Pt 13.1 13.0 13.0 12.9
Pa 4.0 4.4 4.9 5.4
0 Pat 4.5 4.9 5.4 5.9
Qc 2.3 2.3 2.3 2.3
∆Pc 21.1 21.1 21.0 20.9
Pt 16.2 16.2 16.1 16.0
Pa 4.1 4.5 5.0 5.5
7 Pat 4.6 5.0 5.5 6.0
Qc 2.8 2.8 2.8 2.8
∆Pc 31.2 31.1 31.0 31.0
Pt 17.6 17.5 17.4 17.4
Pa 4.2 4.4 5.1 5.6
10 Pat 4.7 4.9 5.6 6.1
Qc 3.1 3.1 3.1 3.1
∆Pc 36.4 36.2 36.0 35.9
Pt 19.8 19.7 19.6 19.4
Pa 4.3 4.5 5.2 5.7
15 Pat 4.8 5.0 5.7 6.2
Qc 3.5 3.5 3.5 3.5
∆Pc 45.4 45.2 45.0 44.9
Ta . Model 9
U.R.87% Tw 35 40 45 50
Ta: outside air temperature (°C) Pa: compressor power input (kW) ∆Pc: evaporator pressure drop (kPa)
Tw : evaporator water outlet temperature (°C) Pat: total power input (kW) - conditions outside of ope rating limits
Pt: heating capacity (kW) Qc: evaporator water flow (m 3 /h)
U.R.87% Tw 35 40 45 50
Ta . Model 5 Ta . Model 7
U.R.87% Tw 35 40 45 50
Ta . Model 14
U.R.87% Tw 35 40 45 50 U.R.87% Tw 35 40 45 50
Ta . Model 10 Ta . Model 12
U.R.87% Tw 35 40 45 50
Pt 6.7 6.7 6.7 -
Pa 2.8 3.0 3.3 -
-5 Pat 3.1 3.3 3.6 -
Qc 1.2 1.2 1.2 -
∆Pc 24.6 24.0 23.7 -
Pt 7.5 7.5 7.5 7.4
Pa 2.9 3.1 3.4 3.7
0 Pat 3.2 3.4 3.7 4.0
Qc 1.3 1.3 1.3 1.3
∆Pc 28.8 28.5 28.1 27.6
Pt 8.8 8.8 8.8 8.7
Pa 3.0 3.2 3.5 3.8
7 Pat 3.3 3.5 3.8 4.1
Qc 1.6 1.6 1.6 1.6
∆Pc 48.5 48.2 47.8 47.4
Pt 9.5 9.5 9.5 9.4
Pa 3.1 3.3 3.6 3.9
10 Pat 3.4 3.6 3.9 4.2
Qc 1.7 1.7 1.7 1.7
∆Pc 56.8 56.2 55.7 55.3
Pt 10.2 10.2 10.2 10.1
Pa 3.2 3.4 3.7 4.0
15 Pat 3.5 3.7 4.0 4.3
Qc 1.8 1.8 1.8 1.8
∆Pc 62.0 61.7 61.4 60.9
Pt 5.0 5.1 5.1 -
Pa 1.6 1.8 2.0 -
-5 Pat 1.8 2.0 2.2 -
Qc 0.9 0.9 0.9 -
∆Pc 22.9 23.4 23.9 -
Pt 5.7 5.7 5.7 5.8
Pa 1.6 1.8 2.0 2.3
0 Pat 1.8 2.0 2.2 2.4
Qc 1.0 1.0 1.0 1.0
∆Pc 29.2 29.6 30.0 30.4
Pt 7.8 7.7 7.7 7.7
Pa 2.3 2.4 2.6 2.8
7 Pat 2.6 2.7 2.9 3.1
Qc 1.3 1.3 1.3 1.3
∆Pc 36.9 36.4 36.0 35.9
Pt 7.3 7.3 7.3 7.3
Pa 1.7 1.9 2.1 2.3
10 Pat 1.8 2.0 2.3 2.5
Qc 1.3 1.3 1.3 1.3
∆Pc 48.4 48.3 48.3 48.4
Pt 8.3 8.3 8.2 8.2
Pa 1.7 1.9 2.1 2.4
15 Pat 1.9 2.1 2.3 2.5
Qc 1.4 1.4 1.4 1.4
∆Pc 62.3 61.8 61.5 61.3
Pt 4.1 4.1 4.1 -
Pa 1.3 1.5 1.6 -
-5 Pat 1.4 1.5 1.7 -
Qc 0.7 0.7 0.7 -
∆Pc 17.5 17.9 18.2 -
Pt 4.6 4.6 4.6 4.6
Pa 1.3 1.5 1.7 1.9
0 Pat 1.4 1.6 1.7 1.9
Qc 0.8 0.8 0.8 0.8
∆Pc 21.9 22.0 22.2 22.4
Pt 5.6 5.5 5.5 5.4
Pa 1.4 1.5 1.7 1.9
7 Pat 1.7 1.8 2.0 2.0
Qc 0.9 0.9 0.9 0.9
∆Pc 23.9 23.4 23.0 22.9
Pt 5.9 5.9 5.9 5.9
Pa 1.4 1.5 1.7 1.9
10 Pat 1.5 1.6 1.8 2.0
Qc 1.0 1.0 1.0 1.0
∆Pc 37.1 36.9 36.7 36.5
Pt 6.8 6.8 6.8 6.7
Pa 1.4 1.6 1.7 1.9
15 Pat 1.5 1.7 1.8 2.0
Qc 1.2 1.2 1.2 1.2
∆Pc 49.2 48.8 48.5 48.2
A
21
Pt 10.5 10.4 10.3 -
Pa 3.6 4.0 4.5 -
-5 Pat 3.9 4.3 4.8 -
Qc 1.8 1.8 1.8 -
∆Pc 13.9 13.9 13.8 -
Pt 12.8 12.7 12.6 12.5
Pa 3.7 4.1 4.6 5.1
0 Pat 4.0 4.4 4.9 5.4
Qc 2.2 2.2 2.2 2.2
∆Pc 20.2 20.1 20 19.9
Pt 15.6 15.5 15.5 15.4
Pa 3.8 4.2 4.7 5.3
7 Pat 4.1 4.5 5.0 5.6
Qc 2.7 2.7 2.7 2.7
∆Pc 30.2 30.1 30 30
Pt 16.9 16.8 16.7 16.6
Pa 3.9 4.3 4.8 5.3
10 Pat 4.2 4.6 5.1 5.6
Qc 3.0 3.0 3.0 3.0
∆Pc 35.4 35.2 35 34.8
Pt 19 18.9 18.8 18.7
Pa 4.0 4.4 4.9 5.5
15 Pat 4.3 4.7 5.2 5.7
Qc 3.2 3.2 3.2 3.2
∆Pc 46.2 45.6 45 44.4
U.R.87% Tw 35 40 45 50
Ta . Model 16 Ta: outside air temperature (°C)
Pa: compressor power input (kW)
∆Pc: evaporator pressure drop (kPa)
Tw : evaporator water outlet temperature (°C)
Pat: total power input (kW)
- conditions outside of operating limits
Pt: heating cooling (kW)
Qc: evaporator water flow (m 3 /h)
Air conditioner operating conditions
For proper performance, run the air conditoner under the following temperature conditions
Outdoor temperature: 10 ~43 Cooling operation
indoor temperature: /
Outdoor temperature: 4 ~24
(-15 ~24 ,When charge enough antifreeze ) Heaing operation
(cooling only type without) indoor temperature: /
Water temperature 4 ~20 (-15 ~20 ,When charge enough antifreeze )
If air conditioner is used beyond the above conditions, safely protection features may come into operation
cooling:
30 ~55 (30 ~55 ,When charge enough antifreeze ) heating:
22
LIMITI DI FUNZIONAMENTO
cPf
cQ
cdp
0
1 1
1
12%
0.98 1.02
1.07
20%
0.97 1.04
1.11
28%
0.965 1.075
1.18
35%
0.96 1.11
1.22
40%
0.955 1.14
1.24
Thermal head min. - max. 4-6
Water circuit pressure (bars) 1-3
Max. storage temperature 63
ETHYLENE GLYCOL SOLUTIONS
Water and ethylene glycol solutions used as a thermal
During winter leaving the unit unused, please drain
water out completely from unit if no antifreeze were
charged into pipeline, or keep power on(at standby
or off status) and ensure that water is contained
inside of unit.
When ambient temperature lower 5 running cooling
mode must be charged antifreeze. Refer to upper para-
meters for the charged volume.
vector in the place of water reduce the performance
of the unit. Multiply the performance figures by the
values given in the following table.
0 -5 -10 -15 -20 -25
Fr eezing point (°C)
Pe r centage of ethylene glycol in weight
cPf: correction factor refrigerating capacity
cQ: correction factor flow rate
cdp: correction factor pressure drop
f1 capacity correction factor
fk1 compressor power input correction factor
fx1 total power input correction factor
FOULING FACTORS
The performance data given refer to conditions with
clean evaporator plates (fouling factor=1). For differ-
ent fouling factors, multiply the figures in the perfor-
mance tables by the coefficient given in the following
table.
A I
4.4 x 10 -5
0.86 x 10 -4
1.72 x10 -4
-
0.96
0.93
-
0.99
0.98
-
0.99
0.98
Fouling factors
(m 2 °C/W) f1
Evaporator
fk1 fx1
COOLING
DELIVERY WATER TEMPERATURE
E
R
U
T
A
R
E
P
M
E
T
R
I
A
E
D
I S
T
U
O
HEATING
DELIVERY WATER TEMPERATURE
C
E
R
U
T
A
R
E
P
M
E
T
R
I
A
E
D
I S
T
U
O
Recommended
operating area
- 0 4 5 7 15 20
0
20
35
43
t( )
t( ) 30 45 55
-15
-3
7
24
t( )
35
20
Minimum wate volume L 21 30 38 43 50 60 68
Model 5 7 9 10 12 14 16
Minimum water volume
If the total water volume in the system is less than the value in
the table above, the additional water tank is necessary in order
to avoid the compressor On and Off frequently.
The minimum size of the water tank is calculated as:
Size of additional water tank(L) = Minimum water volume(L) - Actual
water volume(L)
C t( )
23
HYDRAULIC DATA
Model Water m 3 /h 0.8 1.0 1.2 1.4 1.6 1.8 2.0
flow l/sec 0.222 0.278 0.333 0.389 0.444 0.500 0.556
Model Water m 3 /h 1.2 1.4 1.6 1.8 2.0 2.2 2.4
flow l/sec 0.333 0.389 0.444 0.500 0.556 0.611 0.667
USEFUL PUMP HEAD CURVES (10/12/14/16 KW)
HEAT EXCHANGER PRESSURE DROP (WATER SIDE)
Note: the values highlighted refer to the rated flow
(*) To obtain the useful head of the installation, subtract the pressure drop of the plate heat exchanger.
I A
5 kPa 13 23 36 52 - - -
7 Pressure kPa 12 21 33 47 65 - -
9 drop kPa 8 15 24 35 48 62 -
10 kPa 8 11 15 19 24 30 37
12 kPa
14 6 8 10 14 17 21 26
6 7 9 13 16 20 24
7 10 14 18 23 29 36 Pressure kPa
16 drop kPa
0
1
2
3
4
5
6
7
8
9
0 2 4 6 8
FLOW VOLUME Q [m3/h]
P
M
U
H
P
D
A
E
H
] m
[
USEFUL PUMP HEAD CURVES (5/7/9 KW)
6 H e a d
P o w e r i n p u t P 1
.
m i n .
m i n .
m a x .
m a x .
.
min.
m a x .
0 . 4
0 . 8
1 . 2
1 . 6
2
2 . 4
2 . 8
3 . 2
3 . 6
4
4 . 4
4 . 8
5 . 2
5 . 6
[ m ]
0 . 0 0 5 0 . 0 1
0 . 0 1 5 0 . 0 2
0 . 0 2 5 0 . 0 3
0 . 0 3 5 0 . 0 4
0 . 0 4 5 0 . 0 5
0 . 0 5 5 0 . 0 6
0 . 0 6 5 0 . 0 7
0 . 0 7 5 0 . 0 8
0 . 0 8 5 0 . 0 9 [ k W ]
0 0 . 4 0 . 8 1 . 2 1 . 6 2 2 . 4 2 . 8 3 . 2 3 . 6 [ m h ] 2
COOLING ONLY
HEAT PUMP
A I
(only HEAT PUMP) only HEAT PUMP)
24
REFRIGERANT CIRCUIT
25
CHECKING AND STARTING UP THE UNIT
PREPARING FOR FIRST START UP
Restarting after shutting down for long periods
The chiller must be started up for the first time by the Techni-
cal Service. Before starting up the chillers, make sure that:
- All safety conditions have been respected
- The chiller is adequately fixed to the surface it rests on
- Functional distances have been respected;
- Hydraulic connections have been carried out as indicated in
the instruction manual
- The water circuit is filled and vented. When draining after
heat pump operation, take care as the water may be hot;
- The water circuit valves are open
- Electrical connections have been carried out correctly
- Voltage is within a tolerance of 10% of the rated voltage for
the unit
- The unit is correctly earthed
- All electrical and hydraulic connections are tight and have
been completed correctly.
The unit must be started up for the first time with stan-
dard settings. Set point values may be modified only after
testing has been completed. Before starting up, power the
unit for at least two hours by switching QF1 and QS1 to
ON and setting the control panel “HSW7” to OFF to
allow the oil in the compressor sump to heat up.
STARTING UP FOR THE FIRST TIME (after two
hours)
Before activating the chiller:
- Make sure the main remote switch QF1 is in the OFF position;
- Make sure the remote secondary switch SA2 is in the OFF
or STANDBY position
- Make sure the remote keyboard A6 (if present) is set to OFF
To complete the electrical connections:
- Remove the inspection panel by unscrewing the five screws
- Use grommet A for the electrical power cable and
grommet B for the other external wires.
- Replace the inspection panel
- Position the main switch QF1 (outside the unit) in the “ON”
position
- The “POWER” LED on the control panel “ST542” comes on
to signal that voltage is present..
ON
OFF
A
A B
26
-
A
- T
Er20 check water flow rate and differential pressure switch.
t e s
ON
OFF
CTIVATING AND DEACTIVATING THE UNIT
Set the remote keyboard “A6” (if present) to ON.
o ACTIVATE and DEACTIVATE the COOLING and
HEATING functions, use the "ST542" control panel
orthe remote keyboard "A6" if present.
During this phase, if the following indications appear on
the display, follow the instructions:
e d
o m
2 1
1 2 3
3
To access the control panel, open the door:
- r emove the screw 1 and screw 2;
- lift the door 3.
The front panel of the device functions as the user interface and is used to perform all operations relating to the device.
Keys There are 4 keys on the front panel. Each key has (see the two tables below):
o A “direct” action (indicated on the key)
o An “associated” function (indicated on the front panel of the device beside the key). In the manual, this is
shown in square brackets (e.g. [UP])
o A “combined” action involving two keys. In the manual, this is shown in square brackets (e.g.[UP+DOWN])
Keys and associated functions
mode
IMG INFO
Key Description Key Press once
(press and release)
Key
[associated function]
Press and hold
[press for about
3 seconds] Menu /Comments
UP
(UP)
DOWN
(DOWN)
Esc(ape)
Output
(Without saving
new settings)
• Increases a value
• Goes to the next label
• Decreases a value
• Goes to theprevious label
• Exit without saving
new settings
• Go back to previous
level
[Manual defrost
activation]
Functions menu
see Functions
chapter (folder
FnC)
[Local ON/OFF]
See Local
On/OFF section
See also
Functions menu
Functions
chapter (folder
FnC)
[Change mode]
See section on
Changing
operating mode
A CTIVATING AND DEACTIVATING THE UNIT U A I
disp
Set
Confirm
(save new settings)
• Confirms value/ exit and save new settings
• Move to next level (open
folder,
subfolder,
parameter,
value)
• Open State Menu
ALL
Alarm
acknowledgment
[Main display]
---
See Main Display
section
[Main Display
Menu]
See Manual
alarm
acknowledgment
and reset section
IMG INFO
IMG INFO
IMG INFO
IMG INFO
Press the [DOWN] key for about 3 seconds from the
main display
The word OFF will appear on the display.
All other LEDs will be off
Device ‘OFF’ －－>‘ON’
Device ‘ON’ －－>‘OFF’
Local On/OFF
The word OFF will appear on the display.
Press the [DOWN] key for about 3 seconds
Energy ST500 will return to the “normal” screen
27
SETTING SERVICE PARAMETERS A
NOTE:
The local ON/OFF function is deactivated if the device has been turned OFF remotely or if a digital input is configured as a
remote ON/OFF.
Remote control of the unit can be done by a voltage free contact. Depending on the setting on the digital controller ,the unit will operate in cooling or in heating mode.
1、Connect the cable to the appropriate terminals as shown or the wiring diagram.
2、Fix the cable with cable ties to the cable tie mountings to ensure strain relief.
Note : ① The remote has priority and controls on/standby operation and change over operation.
② If you want to use ST542 to control cooling/heating neither the remote,you must to set the parameter CF26 from “-14” to “0”.Please view parameter (folder PAr).
heating / cooling
cooling
SA2
terminal block
Remote on/standby and cooling / heating possibilities
Procedure
9 10
28
heating
SA2
terminal block
9 10
remote on / standby
on
SA1
terminal block
4 5
standby
SA1
terminal block
4 5
EU Eu00 …… …… …… ……
PASS Password
Programming menu
Label Description Change Comments
PAr CF Ui St …… Al Parameters
FnC dEF tA St CC EUr Functions See Functions
chapter (folder FnC)
Parameters (folder PAr) Modifying a parameter
Instructions are provided below on how to change a machine parameter. By way of example, let’s look at the CF
configuration parameters folder, parameter CF26 (folder PAr/CF/CF26).
set
esc
set
esc
set
esc
Press the esc and set keys together to open
the parameters menu. This will open the PAr
menu.
The PAr parameters menu contains all
device parameters. Press the set key to view
all folders.
The first folder shown for the device is the
CF configuration folder. Simply press the set
key again to modify individual CF
parameters.
set
esc
The CF00 parameter will be shown on the device
(factory default settings).
Press the "up" key to scroll the various
parameters or move to the next parameter
(CF01 in this case) or the ?down? key to go back
to the previous parameter (CF47 in this case).
CF00->CF01->CF02->……->CF47->CF00
CF47<-CF00<-CF01->……<-CF46<-CF47
N.B: -> UP, <-DOWN
29
ST542
ST542
ST542
ST542
Press the set key to view the value of the
parameter (CF26 in this case).
For parameter CF26, the value shown will be -14.
Press the “up” and “down” keys to modify this
value.
Press the set key once you have entered the
required value. **
Press the esc key to exit this display and go back
to the previous level.
**N.B. pressing the set key will confirm the value
entered. Pressing the esc key will take you back
to the previous level without saving the value
entered.
set
esc
set
esc
set
esc
Functions (FnC folder) See Functions chapter (folder FnC)
30
ST542
ST542
ST542
set
esc
Example of how to set the setpoint (SP)
By way of example, we will change the setpoint value in COOL mode by 12.0 degrees centigrade to12.5 degrees centigrade.
To change the setpoint on your machine, press the
set key from the main display.
ST542
set
esc
set
esc
set
esc
set
esc
set
esc
set
esc
Pressing the set key once will open a list of the
various folders. Use the “UP” and “DOWN” keys to
scroll the menu and find the SP folder.
Press the set key to open the SP folder.
The first screen you see will be the COOL mode
then the HEAT mode, using the “up” and “down”
keys to scroll (shown beside each view).
Let’s say you want to change the COOL mode
setpoint.
Select COOL from the menu, then press the set
key.
The device will show the current machine setpoint,
which in this case is 12.0 degrees centigrade). Use
the “up” and “down” keys to increase or decrease
it. For example, if you want to change the setpoint
to 12.5 degrees, press the "up arrow" key until you
reach the required value.
31
ST542
ST542
ST542
ST542
ST542
ST542
set
esc Once you have reached the required setpoint, press the set key. The device will save the value 12.5.
esc To get back to the main display, press the esc key or
allow a 15 second timeout to elapse for each menu.
View and Reset compressor/pump time
Example display and reset time (hours x10) for
Pump 2
Press the set key from the main display
The label Ai will appear on the display. Use the UP
and DOWN keys to scroll the other labels until you
find the Hr label.
Press the set key to view the first label - which in this
case is the running time for compressor 1 (CP01)
Scroll with the UP and DOWN keys to view (if the
relative resources are present) the running time for
compressor 2 (CP02) the pump running time (PU01,
PU02)/Press the set key to view the pump running time
PU02.
32
ST542
ST542
set
The tens of hours of functioning are 2.
(Hours expressed in tens:
2 means 20 hours of operation).
To clear pump running time PU02, press and hold
the [set] key.
To reset the hours of functioning of pump PU02,
press and hold [set].
Note: Repeat the procedure described to reset the
hours of functioning of the other resources.
-------------------------------------
Press the esc key to go back to the main display.
“States” menu From the states menu you can view values for each resource.
For some resources, a "dynamic" view is possible.
• For example, when declared as not present / probe not configured (see System Configuration chapter (folder
Par/CF), parameter CF01=0), analogue input AI2 will not be displayed.
• For example the hours of functioning of compressor 2 - CP02 - not available on single compressor machines.
Label Ai Ai1 Ai2 Ai3 Ai4 // // Dynamic Analogue inputs //
di di1 di2 di3 di4 di5 // Dynamic Digital inputs //
AO AO1 AO2 AO3 // // // Dynamic Analogue outputs //
dO dO1 dO2 dO3 dO4 dO5 dO6 Dynamic Di gital outputs //
CL HOUr dAtE YEAr Clock YES
AL Er00 Er99 Dynamic Alarms //
SP Value // // // // // Setpoint (set) YES
Sr Value // // // // // Real setpoint //
Hr CP01 CP02 PU01 PU02 // // Dynamic Running time YES
(hoursx10)
compressor/pumps
Visibility Description Change
Reset alarm log (folder EUr)
See 1-4
Press [esc + set] in the main screen.
The label ‘PAr’ will appear. Scroll with ‘UP’ and
‘DOWN’ to find the ‘FnC’ label.
Press ‘set’. The label ‘dEF’ will appear. Scroll with
‘UP’ and ‘DOWN’ to find the ‘EUr’ label.
Press the “set” key for 3 seconds [set]
The ‘YES’= label appears to indicate that the alarm log
has been deleted.
33
set
esc
set
esc
Keys-combined action
Symbol [function
associated to
the combined
pressing of the
keys]
[Menu] / Comments Combination
Keys
Combined pressing
of keys Press once
(press and release [associated function]
[UP
(UP)
+
DOWN
(DOWN)]
[Manual reset] See Manual alarm
acknowledgment and
reset section
[Esc+SETPOINT]
[Open programming
menu]
[Programming menu]
Manual alarm acknowledgment and reset Alarm messages blink. How to acknowledge an alarm is explained below.
All error messages are shown in the AL folder (see state Menu)
An error message will be shown, alternating
with the error alert and the main display.
The ALARM LED will be permanently on.
34
ST542
ST542
set
esc
set
esc
set
esc
ALARM/ERROR ACKNOWLEDGMENT
An error can be acknowledged by pressing any
key once.
After pressing any key, the alarm LED will start
to blink.
MANUAL RESET
To manually reset an alarm, press the “up” and
“down” keys together [UP+DOWN]
- - - - - - - - -
N.B: resetting an active alarm* will save the
alarm in the AL folder (see state Menu).
* i.e. manual reset (alarm)
The device will return to the main display.
LEDs and Display The display has 18 icons (LEDs) split into 3 categories (+ decimal point):
• Decimal point
• States and Operating Modes
• Values and Units of Measure
• Loads
Display Values of up to 4 figures or 3 figures plus a sign can be displayed.
LED: decimal point
Values are always shown in tenths of a degree/bar.
35
ST542
ST542
ST542
36
At every change of season, make sure the operating conditions fall within the limits specified on page 18.
Check that the compressor current input is less than the maximum indicated in the table of techni-
cal data.In three-phase models,check that the no ise levels of the compressor are not abnormal.
If this is the case, reverse one phase.
Make sure the voltage is within the established lim its and that, for three phase units, the unbala-
nce its and that, for three phase units, the unbalance between the phases is less than 3%. Check
that the cover is closed again following the setting procedure. Heating and cooling are activated and
deactivated via the control panel.To activate and deactivate the unit, see page 17.
IMG INFO
IMG INFO
Alarm Display (AL)
Press the set key from the main display
The label Ai will appear on the display. Use the UP
and DOWN keys to scroll the other labels until you
find the AL label
Press the set key to view the label of the first active
alarm (if it exists)
In this case, the first alarm is Er01. Use the UP and
DOWN keys to scroll any other alarms.
N.B: the menu is not cyclical.
For example, if the active alarms are ER01, Er02
and Er03, the display will show:
Er01 ->Er02->Er03 <-Er02<-Er01
N.B: -> UP, <-DOWN
Press the esc key to go back to the main display.
set
esc
set
esc
set
esc
set
esc
set
esc
For example, let’s say you want to change ST542
ST542
ST542
ST542
ST542
from StbY to COOL mode
To change operating mode, press and hold the
mode key for at least 2 seconds
PS The main display is set as rtc (current time)
A blinking menu will open containing the
values StbY (standby), HEAt (heat) and COOL
(cool).
Select your required operating mode and press
the set key.
You will be automatically returned to the main
display and you will see that the Stby LED that
was previously on has gone off and the COOL
LED has come on.
“Operating Mode” menu Instructions are provided below on how to change the operating mode.
There are three different operating modes:
• Standby mode (StbY)
• Heat mode
• Cooling mode
37
set
esc
set
esc
Setting the clock (CL)
ST542
ST542
Energy ST500 has a clock (RTC) to run the alarm log and time bands, just like a programmable chronothermostat.
Instructions are provided below on how to set the time: the same procedure applies to change the date and year.
To change the clock on your machine, press the set
key from the main display.
Pressing the set key once will open a list of the
various folders.
Use the “UP” and “DOWN” keys to find the CL
folder.
Press the set key to open the CL menu.
set
esc
set
esc
set
esc
On entering this menu, you will see HOUr. Use the
“UP” and “DOWN” keys to select the time, date or
year.
Once you have decided what you want to set, press
the [set]** key to open the modification menu for
the variable selected.
**press and hold for about 3 seconds
38
ST542
ST542
ST542
39
CnF* Machine configuration parameters value
CP Compressor parameters value
FAn Fan parameters value
ALL Alarm parameters value
PUP Pump parameters value
Fro Frost parameters value
dFr Defrost parameters value
LIST OF ACCESSIBLE PARAMETERS
Parameter Description Unit of measure
Note: when setting the parameters the COMPRESSOR and HEATER LEDs will flash alternating with the DEFROST LED.
* To enable the remote heating-cooling switch set parameter H27 to 2.
DISPLAYING ALARMS I A FA ULT CAUSE REMEDY
Values display indication
STY
Remote switch in Standby position
(automatic reset)
Position the remote switch to Standby
Reset the switch
Reset the jumper between terminals 4-5
V alues display indication
Er01
High pressure switch tripped
manual reset
Check fault (see high discharge pressure page 30)
Reset manually
Values display indication
Er05
Low pressure switch tripped
automatic reset for the first three trips in an hour Check fault
V alues display indication
Er41
3-phase sequence,current and over-heat
condenser temperature protection Check power supply (A1)
Values display indication
Er30
Frost prevention alarm
(manual reset)
Check water outlet temperature
Check water flow
Check set point temperature or reset heating model
Values display indication
Er61
Water delivery sensor BT2 malfunction
(automatic reset)
Check electrical connections
Replace component
Values display indication
Er62
Coil sensor BT3 malfunction
(automatic reset) Check electrical connections
Replace component
Reconnect to A6 controller
Values display indication
Er60
Water return sensor BT1 malfunction
(automatic reset)
Check electrical connections
Replace component
V alues display indication
Er20
Values display indication
Er47
Differential pressure switch or flow switch tripped
automatic reset for the first three trips in an hour
Check for inadequate water flow
Check presence of air in water circuit
Remote keyboard communication error
manual reset
Reset the clock Values display indication
Er45/Er46 Error clock faulty / Error set clock
Manual reset Values display indication
Er90 Alarm history records exceeded message
(manual reset)
40
OPERATING CHARACTERISTICS
Set point in cooling
(factory set) = 10°C, Hysteresis = 3°C.
The compressor starts with water temperatures above
13°C.
The compressor shuts down with water temperatures of
less than 10°C.
Set point in heating
(factory set) = 45°C, hysteresis = 3°C.
The compressor starts with water temperatures below
42°C.
The compressor shuts down with water temperatures
above 45°C.
In the event of a temporary power failure, when power
returns, the mode set previously will be retained in the
memory.
COMPRESSOR START UP DELAY
Two functions prevent the compressor from starting up
too frequently
- Minimum time since last shut-down 180 seconds.
- Minimum time since last start-up 360 seconds.
PUMP
The electronic board includes a pump control output. The
pump starts when the assembly is powered up and at least
120 seconds before the compressor starts up and stops 120
seconds after the assembly shuts down.
After the first 120 seconds of pump operation when th e
water flow is at full speed, the water flow alarm functions
are activated (differential pressure switch and flow switch).
FAN SPEED CONTROL For correct operation of the unit with different outside
temperatures, the microprocessor controls the fan speed
based on the pressure reading from the pressure probe,
thus enabling heat exchange to be increased and/o r
dec reased, maintaining the condensing or evaporation
temperature practically constant.
The fan functions independent ly of the compressor.
FROST PREVENTION ALARM
To prevent the water freezing and damaging the plate heat
exchange r, the microprocessor shuts down the compres-
sor if the temperature measured by the heat exchanger
outlet temperatu re sensor is less than 3°C.
The frost prevention temperature set point can be modi-
fied by an authorised service centre only and only after
verifying that the water circuit contains antifreeze.
Tripping of this alarm shuts down the compressor but not
the pum p, which remains active.
To reset normal functions, the outlet water temperature
must rise to more than +15°C. Reset is manual.
WATER FLOW ALARM
The microprocessor provides for management of a water
fl ow alarm controlled by a differential pressure switch fit-
ted as standard on the appliance and a flow switch to be
installed on the water deli very piping.
This safety device may trip after the first 120 seconds of
pump operation when the water fl ow is up to speed.
Tripping of this alarm shuts down the compressor but not
the pum p, which remains active.
To reset normal functions, the alarm contact must be deac-
tivated for at least five seconds.
When electrical current current exceeds to setting value and
condenser temperature over than 65° C, system will shut down,
but not returns to normal operation until the condenser tempera-
ture decreased less than 52°C. If phase sequence were de-
tected error, please re-input power, and then the system will
turn normal.
A I
SHUTTING DOWN FOR LONG PERIODS
If it is previewed not to use the machine for long
periods
After deactivating the chiller:
- Make sure the remote switch SA2 is in the "Standby" position,
or alternatively disconnect the unit from the power supply.
- Make sure the remote keyboard (if present) or the ST542
is set to “OFF”.
- Position QF and QS on OFF
- Deactivate the indoor terminal units by placing the
switch of each unit in the “OFF” position.
- Close the water valves.
If there is a possibility that the outside tempera-
tu re may drop below zero, there is the risk of
freezing.The water circuit MUST BE EMPTIED AND SHUT OFF POWER (when draining after heat pump operation take care as the water may be
hot) or antifreeze must be added in the proportion recommended by the manufacturer.
A
With a pump connected to terminals PL and PN on the
installer terminal board.
41
Never perform any cleaning operations before having
CHEMICAL WASHING
You are recommended to chemically wash the plate heat
exchanger after every 3 years of operation. For instruc-
tions on how to carry out this operation, contact De’ Lon-
ghi Spa.
REFRIGERANT GAS CONTENT
The chillers are filled R410a refrigerant gas and tested in
the factory. In normal conditions, there should be no need
for the Technical Assistance Service to intervene to check
the refrigerant gas. However, over time, small leaks may
develop at the joints leading to loss of refrigerant and drai-
ning of the circuit, causing the unit to function poorly. In
this case, the leaks of refrigerant must be identified and
repaired and the refrigerant circuit refilled. Proceed as fol-
lows:
- Empty and dry the entire refrigerant circuit using a
vacuum pump connected to the low and high pressure
tap until the vacuometer reads about 10 Pa. Wait a cou-
ple of minutes and check that this value does not rise to
more than 200 Pa
- Connect the refrigerant gas cylinder or a filling cylinder
to the low pressure line pressure gauge connection.
- Fill with the quantity of refrigerant gas indicated on the
rating plate of the unit..
- Always check the superheating and subcooling values. In
the nominal operating conditions for the appliance, these
should be between 5 and 10°C and between 4 and 8°C
respectively.
- After a couple of hours of operation, check that the
liquid indicator indicates circuit dry (dry-green)
In the event of partial leaks, the circuit must be
completely emptied before being refilled
The R410a r efrigerant must only be filled in the liquid state.
Operating conditions other than nominal condi-
tions may produce considerably different values.
Seal testing or identification of leaks must only
be carried out using R410a refrigerant gas, checking
with a suitable leak detector.
The refrigerant circuit m ust not be filled with a refrigerant other than that indicated on page 14.
The use of a different refrigerant may cause serious
damage to the compressor.
Oxygen, acetylene or other inflammable or
poisonous gases must never be used in the refrige-
rant circuit as they may cause explosion or poiso-
ning.
Oils other than those indicated on pages 14
must not be used.The use of different oils may cau-
se serious damage to the compressor.
ROUTINE MAINTENANCE
Never perform any cleaning operations before having
disconnected the unit from the mains power supply.
If the supply cord is damaged, it must be replaced by the
manufacturer or its service agent or a similarly qualified
person in order to avoid a hazard
Regular maintenance is fundamental to maintain the effi-
ciency of the unit both in terms of operation and energy
consumption.The Technical Assistance Service maintenance
plan must be observed, with an annual service which
includes the following operations and checks:
- Filling of the water circuit
- Presence of air bubbles in the water circuit
- Efficiency of safety devices
- Power supply voltage
- Power input
- Tightness of electrical and hydraulic connections
- Condition of the compressor contactor
- Efficiency of the plate heat exchanger heater
- Checking of operating pressure, superheating and sub-
cooling
- Efficiency of compressor heater
- Cleaning of finned coil (*)
- Cleaning of fan grills
- Cleaning of condensate drain pan (if installed).
(*) for “Heat pump” appliances, the checks are to be
performed quarterly.
For units installed near the sea, the intervals between
maintenance should be halved.
EXTRAORDINARY MAINTENANCE
A
A
DISPOSAL A Do not dispose this product as unsorted municipal waste. Collection of such waste separately for special treatment is necessary .
Do not dispose of electrical appliances as unsorted municipal waste, use separate collection facilities.
Contact you local government for information regarding the collection systems available.
If electrical appliances are disposed of in landfills or dumps, hazardous substances can leak into the groundwater and get into the
food chain, damaging your health and well-being.
disconnected the unit from the mains power supply.
42
TROUBLESHOOTING A I
No voltage
Supply voltage too low
Mains switch in OFF position
Remote switch (if present) in OFF position
Control panel set to OFF
Main unit switch in OFF position
Compressor thermal solenoid switch OFF
- Check presence of voltage
- Check safety systems upstream of
the appliance
Check power line
Switch ON
Contactor coil faulty
Electronic board faulty
Start-up capacitor faulty (if present)
Compressor faulty
Replace the component
FAULT CAUSE REMEDY
Check
Thermal cut-out tripped
Check
Check
Check
The compressor stops due
to the activation of the
protection devices
Excessive delivery pressure
Low suction pressure
Low voltage
Electrical connections not sufficiently tight
Operation outside permitted limits
Faulty operation of pressure switches
Check supply voltage
Check electrical insulation of windings Replace the component
Insufficient output
Insufficient refrigerant
Sizing of unit
Operation outside recommended limits
Noise and vibrations Contact between metal bodies
Repair Weak foundations
Tighten screws Loose screws
Compressor noisy Liquid returning to compressor
Inadequate fixing
Reverse one phase Reversed phase (three phase units only)
The chiller does not start
up
43
TROUBLESHOOTING A I
No voltage
Supply voltage too low
Mains switch in OFF position
Remote switch (if present) in OFF position
Control panel set to OFF
Main unit switch in OFF position
Compressor thermal solenoid switch OFF
- Check presence of voltage
- Check safety systems upstream of
the appliance
Check power line
Switch ON
Contactor coil faulty
Electronic board faulty
Start-up capacitor faulty (if present)
Compressor faulty
Replace the component
FAULT CAUSE REMEDY
Check
Thermal cut-out tripped
Check
Check
Check
The compressor stops due
to the activation of the
protection devices
Excessive delivery pressure
Low suction pressure
Low voltage
Electrical connections not sufficiently tight
Operation outside permitted limits
Faulty operation of pressure switches
Check supply voltage
Check electrical insulation of windings Replace the component
Insufficient output
Insufficient refrigerant
Sizing of unit
Operation outside recommended limits
Noise and vibrations Contact between metal bodies
Repair Weak foundations
Tighten screws Loose screws
Compressor noisy Liquid returning to compressor
Inadequate fixing
Reverse one phase Reversed phase (three phase units only)
The chiller does not start
up
44
FAULT CAUSE REMEDY
Low suction pressure
(less than 5.0 bars)
Low utility water inlet temperature Low external water inlet temperature
Clogged water filter
Blocked plate heat exchanger
Check
Low discharge pressure (less than 25 bars)
Low outside air temperature
Low water inlet temperature Check
Air in water circuit V ent air
Insufficient gas content Check
Moisture in the refrigerant circuit (liquid indicator - moisture yellow)
Faulty fan control
Faulty fan control Check
High suction pressure (greater than 10 bars)
High outside air temperature High inflow water temperature Check
High discharge pressure
(greater than 36 bars)
High external water temperature
High water inlet temperature
Insufficient air flow
Insufficient water flow
Check
Check fan operation
Check pump operation
Faulty fan regulation Check
Air in water circuit Vent air
Excessive refrigerant charge Check
MDV08IU-018IW
202000171179
更改说明： H到I版本，修改第34页不清楚的字体。
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